BOSS TU-3 CHROMATIC TUNER

21-segment LED meter with brightness control
High-Brightness mode enhances meter visibility outdoors
Accurate to +/- one cent
Accu-Pitch Sign function provides visual verification when tuning is complete
Chromatic and Guitar/Bass mode (tune by string number, with support for 7-string guitars and 6-string basses)
Flat tuning is supported with Guitar Flat mode, which allows for drop tunings up to six semitones below standard pitch
Tuner automatically mutes when the tuner is on
Supplies power for up to seven BOSS compact effect pedals

Specifications:
* Tuning Range: C0 (16.35 Hz)--C8 (4,186 Hz)

* Reference Pitch: A4 = 436--445 Hz (1 Hz step)

* Tuning Accuracy: +/- 1 cent

* Modes
Chromatic
Chromatic flat x2
Guitar
Guitar flat x2
Bass
Bass flat x3

* Display mode
Cent mode
Stream mode

* Power Supply
Carbon-zinc battery (9V, 6F22) or Alkaline battery (9V, 6LR61)
AC adaptor (sold separately)

* Bypass: Buffered bypass

* Controls
Pedal switch
MODE button
STREAM/CENT button

* Nominal Input Level: -20 dBu

* Input Impedance: 1 M ohm

* Nominal Output Level: -20 dBu

* Output Impedance: 1 k ohm

* Recommended Load Impedance: 10 k ohms or greater

* Indicator: CHECK indicator (Serves also as battery check indicator)

* Connectors
INPUT jack
OUTPUT jack
BYPASS jack
DC IN jack
DC OUT jack

* Current Draw
20 mA (DC 9 V)
80 mA (DC 9 V, when High Brightness mode is on)

* Expected battery life under continuous use
Carbon: Approx. 5 hours
Alkaline: Approx. 21 hours
*These figures will vary depending on the actual conditions of use.

* Accessories
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
Carbon-zinc battery (9V, 6F22)